Clamp



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U. M. KBRLIN CMMP Filed March. 35, 133

ll atantod llama l t, i

application tiled literati ea, 19%. Serial lilo. 264L267.

My present invention has l'or its object is pressed from said section. The outer end to provide an extremel simple and highly portions of the sleeve 9 are outwardly and ewcient clam intende tor general use in reversely contracted to afford internal cam connecting to ular members, but especially surfaces 11 that engage the cam surfaces 8 o well adapted for use in securing a hose secon the ring 6 to compress and circumferention to a metallic coupling tube member tially contract the same by screwing the two telescoped therein such as used in connecting sections of said sleeve together. in tormtwo hose sections or in securing a nozzle or ing the sections of the sleeve 9 the outer end an air chuck to a hose. portions thereof are folded outward and into To the above end, enerally stated,,the ward upon themselves to atlord reinforcing invention consists of tfie novel devices and bands 12 that surround the internal cam combinations of devices hereinafter desurfaces 11. The inner edge portions of the scribed and defined in the claim. bands 12 are scalloped or fluted at 13 to la the accompanying drawings, which form grips tor the hands when holding the illustrate the invention, like characters indi sections oi? the sleeves, 9 to screw the same a cate like parts throughout the several views. together or when unscrewing the same.

lteterringto the drawings: hrom the above description it is evident Fig. l is a viewin side elevation showing that by screwing the two sections of the one term at the improved clamp applied sleeve 9 together, the cam surfaces 11 will to to a hose section and clamping the same move axially onto the cam surfaces 8 and m onto a metallic coupling tube; thereby compress the ring e and circumferl ig. 2 is a view at the clamp shown in entially contract the same onto the hose d l i l in longitudinal central section; and to frictionally clamp the same onto the %ig. 8 is a view principally in longitudicoupling tube 5 to form a continuous tight t t nal central section showing the invention joint between said hose and coupling tube. ta embodied in a chuck for attaching an air Referring now to the invention asshown hose thereto. in Figs 3, the numeral 14 indicates the tubu- Referring first to the invention as shown lar stem of a chuck 15 oi the type for conin Figs. 1 and 2, the numeral at indicates a necting an air hose 16 leading from acomto section of a hose into which one end of a pressorto the valve stem of a pneumatic metallic coupling tube 5 is telescoped. This tire. @no end of the air hose 16 is teleclamp shown in Figs. 1 and. 2 shows a cornscoped onto the stem 14;- and secured thereto pression ring 6 having amultiplicity oi cirby another form ot the improved clamp. cumterentially spaced herds 'l which extend This clamp includes one of the compression to transversely into said ring alternately from rings 6 telescoped onto the outer end portion each end thereof. The end portions of the at the hose l6 surroundin the stem it and ring 6 are eaternally and reversely beveled sleeve 17 surrounding saic ring and havin to term a cam surliace d. llaid ring 6 is threaded engagement at it with the hod made from a metal ductile enoughto stand ot the chuclr lo. Said bod t th h k to slight bending at the inner ends of the 15 has a tubular inner end extension 1%) that herlts 'l to p ermit the ring b to be compressed surrounds the adjacent end oil the vine ti and circumilerentially contr cted. This hose 'lhe sleeves it and chiiclr compression ring is onto the body extension. ill have i ternal and end portion at the hose d into which the versely extended cam s 20 that can coupling tube 5 is telescoped. respond the cam ll and engage as Surrounding the compressioi ti a the cam surfaces it crewnw th jl iif sleeve ll compr two sections connected 1? onto ti o boov o" i cl: the c by threa l Each secti n at the surfaces w nt ith ave is termed trom a saw e Piece of ram il and the the to lltl hose 16 and frictionally clamp the same around the stem 14 to form a continuous tight joint therebetween.

What I claim is: A hose coupling comprising an endless 5 ring formed of ductile metal havin its ends oppositely beveled and provided with alternate V-shaped slots extending inwardly in substantially overlapping relation and providing a continuous zigzagged strip, and

10 compression means for said ring comprisin a pair of cooperating threaded sheet meta sleeve members having internal beveled surfaces adapted to bear upon the beveled ends of the ring and force them inwardly, the outer ends of the cooperating sleeve members being folded back upon themselves to form reinforcing bands, said reinforcing bands having fluted edges providing gripping portions.

In testimony whereof I affix my slgnature.

OTIS M. KIRLIN. 

